<http://schema.org/keywords>
"Gregorio Petit Gregorio Petit astros Gregorio Petit yankees Gregorio Petit traded to yankees yankees astros trade astros trade Gregorio Petit to yankees mlb trades new york yankees transactions houston astros transactions"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/mlb/2015/04/01/yankees-astros-trade-gregorio-petit>